6,000-Year-Old Locks: The First Security Systems of Ancient Mesopotamia
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6,000-Year-Old Locks: The First Security Systems of Ancient Mesopotamia
The world’s first known lock-and-key system, dating back to 4000 BCE in Mesopotamia, shows how ancient people protected their valuables. Built from wood and pins, this mechanism inspired later Greek and Egyptian versions and reveals how early civilizations mastered mechanical design long before metal tools or electricity.
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